<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <a href="http://www.sina.com.cn">新浪</a>
</body>
</html>
<script>
    var a=document.querySelector('a')
    a.addEventListener('click', (e)=>{
        e.stopPropagation();
        window.open("http://www.baidu.com","")
    })
</script>